I've generally adhered to a "paleolithic diet" this year and have seen a steady improvement in my health. Meat, eggs, fish, vegetables.

More recently I've become wary of gluten, particularly its harmful effects on the gut and on the Thyroid.

I found this article very enlightening: http://thehealthyskeptic.org/the-gluten-thyroid-connection

I'm now avoiding gluten altogether and plan to stay this way for several months. So far the results are positive.